Smith D S, Del Castillo J, Morales M, Luke B
Department of Zoology, Oxford, England.
Tissue Cell. 1990;22(2):157-76. doi: 10.1016/0040-8166(90)90019-6.
The similar proximal and distal attachments to the stereom of primary spine ligament in the echinoid Eucidaris tribuloides are described, from thin sections and SEM studies on frozen and fractured spine articulations and ligaments from decalcified material. The orthogonal structure of the general stereom is modified on the attachment zones where bundles of collagen cylinders enter approximately hexagonally arranged channels. Straps of collagen extend in parallel series between adjacent bundles via regularly placed ports and collagen loops rather than non-striated 'tendons' pass over skeletal trabeculae. The regular pattern of collagen straps is most evident on the proximal and distal attachment zones. Mechanical features of the non-adhesive mode of attachment are considered, together with similarities and differences between insertion of muscle cells and mutable collagenous tissue (ligament) in echinoderms.
通过对来自脱钙材料的冷冻和断裂脊柱关节及韧带的薄片和扫描电镜研究，描述了海胆Eucidaris tribuloides中初级脊柱韧带与骨板的相似近端和远端附着情况。一般骨板的正交结构在附着区域有所改变，在该区域胶原圆柱体束进入近似六边形排列的通道。胶原带通过规则排列的孔和胶原环在相邻束之间平行延伸，而不是无横纹的“肌腱”越过骨骼小梁。胶原带的规则模式在近端和远端附着区域最为明显。文中考虑了非粘性附着模式的力学特征，以及棘皮动物中肌肉细胞插入和可变胶原组织（韧带）之间的异同。
